<?php

/**
 * This is the model class for table "tbl_user".
 *
 * The followings are the available columns in table 'tbl_user':
 * @property integer $id
 * @property string $username
 * @property string $email
 * @property string $password
 */
class User extends CActiveRecord
{
	/**
	 * Returns the static model of the specified AR class.
	 * @return User the static model class
	 */
	public static function model($className=__CLASS__)
	{
		return parent::model($className);
	}

	/**
	 * @return string the associated database table name
	 */
	public function tableName()
	{
		return '{{user}}';
	}

	/**
	 * @return array validation rules for model attributes.
	 */
	public function rules()
	{
		// NOTE: you should only define rules for those attributes that
		// will receive user inputs.
		return array(
			array('username, email, password', 'required'),
			array('username','authenticate'),
			array('email','authenticate'),
			array('username', 'length', 'min'=>2, 'max'=>24),
			array('password', 'length', 'min'=>6, 'max'=>16),
			array('email','email'),
			// The following rule is used by search().
			// Please remove those attributes that should not be searched.
			array('username, email, password', 'safe', 'on'=>'search'),
		);
	}
	

	/**
	 * @return array relational rules.
	 */
	public function relations()
	{
		// NOTE: you may need to adjust the relation name and the related
		// class name for the relations automatically generated below.
		return array(
			'info'=>array(self::HAS_ONE, 'Userinfo', 'uid'),
		);
	}

	/**
	 * @return array customized attribute labels (name=>label)
	 */
	public function attributeLabels()
	{
		return array(
			'email'=>Yii::t('users','email'),
			'username'=>Yii::t('users','username'),
			'password'=>Yii::t('users','password'),
		);
	}

	/**
	 * Retrieves a list of models based on the current search/filter conditions.
	 * @return CActiveDataProvider the data provider that can return the models based on the search/filter conditions.
	 */
	public function search()
	{
		// Warning: Please modify the following code to remove attributes that
		// should not be searched.
		$criteria=new CDbCriteria;

		$criteria->compare('id',$this->id);
		$criteria->compare('username',$this->username,true);
		$criteria->compare('email',$this->email,true);
		$criteria->compare('password',$this->password,true);

		return new CActiveDataProvider($this, array(
			'criteria'=>$criteria,
		));
	}
	
	protected function beforeSave()
	{
		if(parent::beforeSave())
		{
			if($this->isNewRecord)
			{
				$this->password = md5($this->password);
			}
			return true;
		}
		else
			return false;
	}
	
	public function validatePassword($password){
		return md5($password)===$this->password;
	}
	
	public function authenticate($attribute,$params){
		$user = $this->find("LOWER($attribute)=?" ,array(strtolower($this->$attribute)));
		if($user != null) 
			$this->addError($attribute,Yii::t('users', $attribute.' already exists'));
	}
}